Individual growth of Heleobia piscium in natural populations (Gastropoda: Cochliopidae) from the multiple use natural Reserve Isla Martin Garcia, Buenos Aires, Argentina
The present work analyses the individual growth of Heleobia piscium in natural conditions in coastal drainage channels of the Multiple Use Natural Reserve Isla Martín García, Buenos Aires, Argentina. Isla Martín García is located in the Upper Río de la Plata, to the south of the mouth of the Uruguay...
Guardado en:
| Autor principal: | |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2008
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/34468 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842008000300020&lng=en&nrm=iso&tlng=en |
| Aporte de: |
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I19-R120-10915-34468 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Naturales Zoología Biología Heleobia piscium fresh water gastropod individual growth population density isla Martín García population dynamics Cochliopidae Gastropoda Heleobia |
| spellingShingle |
Ciencias Naturales Zoología Biología Heleobia piscium fresh water gastropod individual growth population density isla Martín García population dynamics Cochliopidae Gastropoda Heleobia Martin, Stella Maris Individual growth of Heleobia piscium in natural populations (Gastropoda: Cochliopidae) from the multiple use natural Reserve Isla Martin Garcia, Buenos Aires, Argentina |
| topic_facet |
Ciencias Naturales Zoología Biología Heleobia piscium fresh water gastropod individual growth population density isla Martín García population dynamics Cochliopidae Gastropoda Heleobia |
| description |
The present work analyses the individual growth of Heleobia piscium in natural conditions in coastal drainage channels of the Multiple Use Natural Reserve Isla Martín García, Buenos Aires, Argentina. Isla Martín García is located in the Upper Río de la Plata, to the south of the mouth of the Uruguay river (34deg; 11′ 25″ S and 58° 15′ 38″ W). Monthly collections were made from July 2005 to July 2006 in the eastern part of the island (Arena Beach). The population of H. piscium showed a complex and dynamic structure of sizes during a long period of the annual cycle. Two cohorts could be detected. The Bertalanffy growth equation was: L<SUB>t</SUB> = 6 (1-e <SUP>-1.85 (t+0.38)</SUP>) and L<SUB>t</SUB> = 3.9 (1-e <SUP>-0.19 (t+4.84)</SUP>) for cohorts 1 and 2, respectively. The pattern of population growth displayed a staggered model, where the greatest growth is observed during the summer. The reproductive period occurred during six months, from the beginning of summer to middle of fall. Based on only one reproductive effort, this pattern is not similar to that of other cogeneric species already studied. |
| format |
Articulo Articulo |
| author |
Martin, Stella Maris |
| author_facet |
Martin, Stella Maris |
| author_sort |
Martin, Stella Maris |
| title |
Individual growth of Heleobia piscium in natural populations (Gastropoda: Cochliopidae) from the multiple use natural Reserve Isla Martin Garcia, Buenos Aires, Argentina |
| title_short |
Individual growth of Heleobia piscium in natural populations (Gastropoda: Cochliopidae) from the multiple use natural Reserve Isla Martin Garcia, Buenos Aires, Argentina |
| title_full |
Individual growth of Heleobia piscium in natural populations (Gastropoda: Cochliopidae) from the multiple use natural Reserve Isla Martin Garcia, Buenos Aires, Argentina |
| title_fullStr |
Individual growth of Heleobia piscium in natural populations (Gastropoda: Cochliopidae) from the multiple use natural Reserve Isla Martin Garcia, Buenos Aires, Argentina |
| title_full_unstemmed |
Individual growth of Heleobia piscium in natural populations (Gastropoda: Cochliopidae) from the multiple use natural Reserve Isla Martin Garcia, Buenos Aires, Argentina |
| title_sort |
individual growth of heleobia piscium in natural populations (gastropoda: cochliopidae) from the multiple use natural reserve isla martin garcia, buenos aires, argentina |
| publishDate |
2008 |
| url |
http://sedici.unlp.edu.ar/handle/10915/34468 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842008000300020&lng=en&nrm=iso&tlng=en |
| work_keys_str_mv |
AT martinstellamaris individualgrowthofheleobiapisciuminnaturalpopulationsgastropodacochliopidaefromthemultipleusenaturalreserveislamartingarciabuenosairesargentina AT martinstellamaris crescimentoindividualdeheleobiapisciumempopulacoesnaturaisgastropodacochliopidaedareservanaturaldeusosmultiplosilhamartingarciabuenosairesargentina |
| bdutipo_str |
Repositorios |
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1764820469867872256 |